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<div class="titlepage"><div><div><h3 class="title">
<a name="math_toolkit.internals.tuples"></a><a class="link" href="tuples.html" title="Tuples">Tuples</a>
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<h5>
<a name="math_toolkit.internals.tuples.h0"></a>
        <span class="phrase"><a name="math_toolkit.internals.tuples.synopsis"></a></span><a class="link" href="tuples.html#math_toolkit.internals.tuples.synopsis">Synopsis</a>
      </h5>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">math</span><span class="special">/</span><span class="identifier">tools</span><span class="special">/</span><span class="identifier">tuple</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<h5>
<a name="math_toolkit.internals.tuples.h1"></a>
        <span class="phrase"><a name="math_toolkit.internals.tuples.description"></a></span><a class="link" href="tuples.html#math_toolkit.internals.tuples.description">Description</a>
      </h5>
<p>
        This header defines the type <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">math</span><span class="special">::</span><span class="identifier">tuple</span></code>,
        the associated free functions <code class="computeroutput"><span class="identifier">ignore</span></code>,
        <code class="computeroutput"><span class="identifier">tie</span></code>, <code class="computeroutput"><span class="identifier">make_tuple</span></code>,
        <code class="computeroutput"><span class="identifier">get</span></code>, and associated types
        <code class="computeroutput"><span class="identifier">tuple_size</span></code> and <code class="computeroutput"><span class="identifier">tuple_element</span></code>.
      </p>
<p>
        These types and functions are aliases for:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span></code> etc when available, otherwise:
          </li>
<li class="listitem">
            <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tr1</span><span class="special">::</span><span class="identifier">tuple</span></code> etc when available, otherwise:
          </li>
<li class="listitem">
            <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">fusion</span><span class="special">::</span><span class="identifier">tuple</span></code> etc if the compiler supports
            it, otherwise:
          </li>
<li class="listitem">
            <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span></code>.
          </li>
</ul></div>
<p>
        So this <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">math</span><span class="special">::</span><span class="identifier">tuple</span></code> is strongly recommended for maximum
        portability.
      </p>
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        Distributed under the Boost Software License, Version 1.0. (See accompanying
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